棉花双隐性核雄性不育的利用研究

Studies of Utilization of Genetic Double Recessive Male -sterileG. hirsutum L.

ｍｓ５ｍｓ５受两个隐性基因控制雄性不育，它来源于美国抗风暴品系，没有有害因子存在，用它为母本生产杂交种，具有较好的杂种优势。Ｆ２代群体中只有１／１６不育株，Ｆ２代种子可以利用。

ms5ms6 male-sterile material ,which came from the stormprcof variety , is con-trolled by two recessive genes and has no apparent deleterious factor to yield.The F1 hybridswith ms5ms6 as the female parent have superior hybrid vigor. Its F2 seeds may be utilized on acommercial sale,since only one out of 16 plants is male-sterile.